Choose the right answer from the options given after every question.
Which of the following expressions has the value 37 ?

(i) $10 \times 3 + (5 + 2)$ (ii) $10 \times 4 + (5 - 3)$

(iii) $8 \times 4 + 3$ (iv) $(9 \times 3) + 2$

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Solution

$10 \times 3 + (5 + 2) = 10 \times 3 + (7) = 30 + 7 = 37$
Hence, the correct option is (i).

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Similar questions

{[{(\frac{3}{7})}^{- 3}]}^{4}

{(\frac{3}{7})}^{- 7}

{(\frac{3}{7})}^{- 10}

{(\frac{7}{3})}^{12}

{(\frac{3}{7})}^{20}

\div (\frac{3}{2}) - \frac{1}{3}

\frac{1}{3}

Re-arrange suitably and find the sum in each of the following :

(i) $\frac{11}{12} + \frac{- 17}{3} + \frac{11}{2} + \frac{- 25}{2}$

(ii) $\frac{- 6}{7} + \frac{- 5}{6} + \frac{- 4}{9} + \frac{- 15}{7}$

(iii) $\frac{3}{5} + \frac{7}{3} + \frac{9}{5} + \frac{- 13}{15} + \frac{- 7}{3}$

(iv) $\frac{4}{13} + \frac{- 5}{8} + \frac{- 8}{13} + \frac{9}{13}$

(v) $\frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5}$

(vi) $\frac{1}{8} + \frac{5}{12} + \frac{2}{7} + \frac{7}{12} + \frac{9}{7} + \frac{- 5}{16}$

Question 3(iv)
Find the value of:

$\left(3^{-1}+4^{-1}+5^{-1}\right)^0$

Find each of the following products :

(i) $\frac{3}{5} \times \frac{- 7}{8}$ (ii) $\frac{- 9}{2} \times \frac{5}{4}$ (iii) $\frac{- 6}{11} \times \frac{- 5}{3}$

(iv) $\frac{- 2}{3} \times \frac{6}{7}$ (v) $\frac{- 12}{5} \times \frac{10}{- 3}$ (vi) $\frac{25}{- 9} \times \frac{3}{- 10}$

(vii) $\frac{5}{- 18} \times \frac{- 9}{20}$ (viii) $\frac{- 13}{15} \times \frac{- 25}{26}$ (ix) $\frac{16}{- 21} \times \frac{14}{5}$

(x) $\frac{- 7}{6} \times 24$ (xi) $\frac{7}{24} \times (- 48)$ (xii) $\frac{- 13}{5} \times (- 10)$

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